I worked with my dad straight after sixth form, until last year, we worked together for about four years. I'm only on my own now, as I get more money!
But I never had any problems with working with my dad, but then I worked for him, not him working for me. But we still work together now once or twice a week, and I have no problems. Even though we work on my round sometimes, I dont try to boss him around.
Could he do the backs, and you do the fronts? That way you wouldnt see much of each other anyway!